/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.nacos.api.config.filter;

import com.alibaba.nacos.api.exception.NacosException;

/**
 * Config Filter Interface
 * 
 * @author Nacos
 *
 */
public interface IConfigFilter {
	/**
	 * Init Fuction
	 * 
	 * @param filterConfig
	 *            Filter Config
	 */
	void init(IFilterConfig filterConfig);

	/**
	 * do filter
	 * 
	 * @param request
	 *            request
	 * @param response
	 *            response
	 * @param filterChain
	 *            filter Chain
	 * @throws NacosException
	 *             exception
	 */
	void doFilter(IConfigRequest request, IConfigResponse response, IConfigFilterChain filterChain)
			throws NacosException;

	/**
	 * deploy
	 */
	void deploy();

	/**
	 * order
	 * 
	 * @return
	 */
	int getOrder();

	/**
	 * filterName
	 * 
	 * @return
	 */
	String getFilterName();

}
